Ball



FIG. 1 is a front perspective view of a ball, showing our new design;

FIG. 2 is a front view thereof; and,

FIG. 3 is a right side view thereof.

The dot-dot-dash broken lines adjacent to the shaded area define the bounds of the claimed design and form no part thereof. The dashed lines depict portions of the ball that form no part of the claimed design. 

CLAIM We claim the ornamental design for a ball, as shown and described. 